| (19) |
 |
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(11) |
EP 1 615 082 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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01.10.2008 Bulletin 2008/40 |
| (43) |
Date of publication A2: |
|
11.01.2006 Bulletin 2006/02 |
| (22) |
Date of filing: 25.05.2005 |
|
| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI
SK TR |
|
Designated Extension States: |
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AL BA HR LV MK YU |
| (30) |
Priority: |
30.06.2004 US 881023
|
| (71) |
Applicant: SAMSUNG ELECTRONICS CO., LTD. |
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Suwon-city,
Gyeonggi-do (KR) |
|
| (72) |
Inventors: |
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- Baker, James A.
Hudson, WI 54016 (US)
- Moudry, Ronald J.
Woodbury, MN 55125 (US)
- Tokarski, Zbigniew
Woodbury, MN 55125 (US)
- Qian, Julie Yu
Aurora, IL 60504 (US)
|
| (74) |
Representative: Moy, David et al |
|
Appleyard Lees,
15 Clare Road
Halifax HX1 2HY
Halifax HX1 2HY (GB) |
|
| |
|
| (54) |
Dry electrophotographic toners comprising amphipathic copolymers having acidic functionality |
(57) Dry electrophotographic toner compositions are provided comprising an amphipathic
copolymer comprising acidic functionality covalently bonded to the amphipathic copolymer.
Methods of making the toner compositions are also provided. The present toner compositions
exhibit unique charge characteristics and unique chemical and charge interaction properties.